2025-11-12 · Punya Mittal
How I Built My AI Assistant
Design notes from building Kai — an emotion-aware AI companion with memory, ethical boundaries, and hybrid rule + LLM architecture.
Building an AI assistant is less about connecting an API and more about defining behaviour under pressure.
With Kai, I focused on emotional continuity, long-term memory, and clear ethical boundaries so the system feels intentional rather than random.
The architecture mixes deterministic rules with LLM generation — useful when you need reliability without giving up conversational flexibility.
- AI
- LLM
- Punya Mittal